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VULNERABILITIES

CVE-2026-66793 Details

Description

A flaw was found in the governance-policy-addon-controller component of Red Hat Advanced Cluster Management for Kubernetes. A user with permissions to annotate the namespaced ManagedClusterAddOn resource can override the governance-policy container image. This allows an attacker to run a controlled image with cluster-admin privileges on the managed cluster, leading to arbitrary code execution and privilege escalation.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:60386 [email protected]
https://access.redhat.com/errata/RHSA-2026:60387 [email protected]
https://access.redhat.com/errata/RHSA-2026:60388 [email protected]
https://access.redhat.com/errata/RHSA-2026:60389 [email protected]
https://access.redhat.com/errata/RHSA-2026:60390 [email protected]

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input Validation[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-66793
NVD Published Date:
Aug 18, 2026
NVD Last Modified:
Aug 27, 2026
Source:
[email protected]
CVE-2026-66793 Details - Not Deferred